package com.cans.lightning.config.security.filter;

import com.cans.lightning.business.core.service.TokenService;
import com.cans.lightning.business.pms.dto.SysUserDto;
import com.cans.lightning.utils.StringUtils;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.annotation.Resource;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * token过滤器 验证token有效性
 *
 * @author shencan
 * @date 2020/8/22 12:15
 */
@Component
public class  JwtAuthenticationTokenFilter extends OncePerRequestFilter {

    @Resource
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {

        SysUserDto loginUser = tokenService.getLoginUser(request);

        if (StringUtils.isNotNull(loginUser) && StringUtils.isNull(SecurityContextHolder.getContext().getAuthentication())) {

            tokenService.verifyToken(loginUser);

            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, null);
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }


        filterChain.doFilter(request, response);

    }
}
